[mc1322x] Contiki tree resync

[Mariano Alvira]

On Fri, Oct 30, 2009 at 01:41:50PM -0400, Jon Smirl wrote:
> 
> The 802.15.4 serial driver is not an approach I have tried. It is
> designed around having a serially connect radio with no embedded CPU.

I see. The last time I tried that it worked quite well. I'm not sure
how far along those guys are though.  But I agree, the mc13224v
probably isn't what you want necessarily, since the embedded CPU is a
little redundant in that case. As a development platform though it was
very easy to get going.

> 
> The contiki support for the Atmel Raven USB stick makes it look like
> an USB Ethernet adapter. The 802.15.4 MAC runs in the Raven stick so
> Linux is not aware it is doing 802.15.4. You don't need any special
> support in the kernel. This model works with the stock Ubuntu kernel
> and WRT router software (you need to enable the USB Ethernet driver in
> WRT).

I understand.

> 
> If you're going to build a USB stick for this purpose the TI CC2531 is
> a better chip. USB, CPU and radio all in a single chip solution. I
> have a TI CC253x development kit sitting here for that reason but I
> haven't opened it yet.

Sure, that makes sense. Although shy away from doing USB stack
development. It took me about 2 hours to get the serial driver up and
running and the linux examples going with the mc13224v. I imagine for
the TI part you either need to use their USB code or write your own
USB stack like Akiba (or port FreakUSB to that part).

-Mar.